[U-Boot] [PATCH v3] ppc4xx: Add GDsys CompactCenter board support.

[Eibach, Dirk]

> > Hmm, not sure yet what causes the problem here, but this changes in 
> > cpu/ppc4xx/start.S look fishy...

I found that the old code does not clear TLB entry #0.
So this helps in my case:

diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index ac96fc2..7be73a7 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -452,7 +452,7 @@ skip_debug_init:
        addis   r0,0,0x0000
        li      r1,0x003f       /* 64 TLB entries */
        mtctr   r1
-       li      r4,0            /* Start with TLB #0 */
+       li      r4,1            /* Start with TLB #1 */
 rsttlb:
 #ifdef CONFIG_SYS_RAMBOOT
        tlbre   r3,r4,0         /* Read contents from TLB word #0 to get
EPN */

But I am not sure if it's also correct for the RAMBOOT case. What's your
opinion, Stefan?

Cheers
Dirk